Calculating machine



Aug. 7, 1923.

F. A. HART CALCULATING MACHINE Filed Dec.

1, 1922 2 Sheets-Sheet 1 INVENTDR W MM 1% amvg HE ATTBRNEY Aug. 7, 1923.

F. A. HART CALCULATING MACHINE Filed Dec. 1, 1922 2 Sheets-Sheet 2 INVENTDFI "fiuoL HE ATTURNEY WITNESEE Patented Aug. 7, 1923.

UNITED STATES PATENT-curios.

rannnnrcx A. RAM. or mrw BRITAIN, connnc'ncu'r, assrenon 'ro nmmemox accoon'rme uacnnm conroaa'rron, or new roux, n. 1., a coarom'rron or NEW YORK.

I CALCULATING IACEINE.

Applicatlon'flled December 1, 1922. semi Io. noun.

To all whom it may concern:

Beit known that I, FREDERICK A. HART citizen of the United States, and resident of New Britain, in the county of Hartford and I State of Connecticut, have invented certain new and useful Improvements in Calculating Machines, of which the following is a specification.

-My invention relates to calculating machines and more particularly to totalizer trucks and means for effectively supporting and guiding the same and to adjustable means whereby the line of travel of the totalizer may be accurately located and maintained.

' To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corresponding parts in the different views, a Figure 1 is a fragmentary end elevation of a portion of a calculating machine embodying my invention.

Figure 2 is a detail end view of the pulley for the return spring of the cross truck and the supporting bracket for such pulley.

Figure 3 is a detail vertical secti'onal view taken on the line 3-3 of Figure 5 and looking in the direction of the arrows at said line.

Figure 4 is a detail fragmentary rear elevation of the cross truck and some of the associated parts on a smaller scale than the other views.

Figure 5 is a detail front elevation of the cross truck.

Figure 6 is a vertical transverse sectional view of the same taken on the line 66 of Figure 5 and looking in the direction of the arrows at said line.

I have shown my invention embodied in a Remin ton accounting machine of the character isclosed in the patent to Wahl No. 1,270,471, dated June 25, 1918, but have shown only so much of said machine as is necessary to arrive at an understanding of my invention in its embodiment therein. It should be understood, however, that the invention is not restricted to embodiment in Col such machine but may be used wherever found available in calculating and like mechines.

In the Remin on accounting machine of the character re erred to above, a main truck 1 is suitably connected to the typewriter carriage to travel therewith through arms A fixed to the latter. The truck is supported and guided about centrally of the machine by rollers only one, 3, of which is shown. These rollers are mounted on an actuator support that is fixed to the frame of the typewritlng machine. So-called vertical totalizers 5 are detachably and adjustably mounted on the truck 1, each totalizer includmg a series of co-axial Wheels 6 that are brou ht successively into mesh with a master whee 7 to be actuated thereby at successive printing operations effected by the numeral keys of the typewriting machine.

The construction also includes a cross truck that is picked up in the travel of the mam truck from right to left and released at a predetermined point for free independent return movement to normal position. In the resent instance the features of my invention are embodied in this cross truck and the manner of constructing and mounting the same, though the invention is not restricted to cross trucks.

The supporting frame of the cross footing mechanism including the truck comprises three sheet metal plates 8, 9 and 10 which. except for slight changes in shape occasioned by my improved truck-mounting, are substantially the same as heretofore employed and as shown in the Wahl patent above referred to. These plates are connected by cross rods 11, 12, 13, 14 and 15. Where aligned openings are required in the plates for connecting them together by the cross rods or supportin the latter on the plates, I prefer to pierce t e holes in all of the plates with the same die, thus assuring exact parallelism of the rods. The usual screws 16 and nut 17 are preferably employed to connect the plates with the cross rods 13, 14 and 15 which rods are the same as heretofore. Each of the rods 11 and 12, which rods are parts of my improvements, is preferably inserted endwise in bearing openings in the plates 8 and 9 and carries screws 18 that abut the inner faces of said plates, to prevent endwise motion of said rods. As thesescrews are readily removable, the construction enables each rod in question to be readily mounted in position or removed without dismantling any other part of the frame. The frame as a whole is suitably secured to the main fixed actuator frame 4, by the same means as heretofore, including screws 19 and 20. The rods 11 and 12 are. maintained in parallelism on the supporting frame and each constitutes a fixed way, rail, track, guide or support for the cross truck and on which said truck is mounted to travel. With the exception of said track rods and the slight changes occasioned by their employment, this entire framing, which is here only partially shown and described, and the mechanism mounted in it are all substantially as heretofore used in the Remington machine and described in the Wahl patent to which allusion has been made.

The cross truck in accordance with my invention is preferably constructed of two sections or members 21 and 22 united in a manner to be hereinafter explained. The member 21 constitutes the main body p01- tion or member of the truck and is supported by the rails 11 and 12, as will be presently explained; whereas the member 22 constitutes the totalizer supporting section for supporting one or more totalizers 23 thereon, one being shown in the present instance. This totalizer is known as a cross totalizer and is similar to each of the vertical totalizers 5, but usually is of greater capacity. This cross totalizer contains co-axially aligned wheels 24 from which motion is transmitted to the numbered wheels. The wheels 24 are brought successively into mesh with a master wheel 25 as the cro s truck is stepped forward with the main carriage, said master wheel being carried by the stationary frame. This master wheel is or may be operated in unison with the master wheel 7 either in the same Or in the reverse direction, as fully explained in the above mentioned VVahl patent.

The fact that the teeth of the wheels 24 must pass between the teeth of the master wheel 25 as thetotalizer 23 moves back and forth, and the further fact that the. two sets of teeth must properly mesh so as-to turn each of the wheels 24 by the master wheel, requires that the cross truck be guided with precision and that the line of. travel of its totalizer wheels 24 relatively to the master wheel be accurately brought about. It is one of the main objects of my invention to provide means for eifeetively accomplishing this result. To this end I provide in connection with an easy running accurately guided cross truck means whereby the to talizer 23 may be nicely adjusted both up.

and down, backward and forward and also to different angular positions relative to the truck section 21, thereby accurately locating and gulding the teeth of the wheels 24 in .their passage between the teeth of the master wheel 25. e These results I accomplish in the following manner:

The rods 11 and 12 are shown in the present instance as circular in cross section, the up or rod 11 coacting'with the grooved perip cry of a single centrally disposed roller 27 carried by the main body member :21 of the cross track. This member is supported on the lower guide rod 12 by two rollers and 29, each having a peripheral groove therein to co-act with the rod. These rollers like the roller 27 are carried by the truck section 21 but near opposite ends thereof. All three of these rollers are mounted on ball bearings and each is adjustable transversely of its axis. I will first describe the means for mounting and adjusting the roller 27, it being understood that such means for all three rollers are much alike and where the parts are alike, the samereference numerals will be applied. The roller 27 has an inner ball bearing groove 30 which is substantially V-shaped in cross section and in which a circular series of ball bearings 31 isarranged. A companion ball bearing member comprises a screw 32, the underside of the head of which is beveled at 33 to form one side of a ball race for the balls 31. The other side of this race is formed by the beveled face 34 of a sleeve 35 supported on the stem of the screw 32. The ring or loop 36 of soft iron or steel is interposed between the head of the screw and the sleeve 85. After the ring 36 has been sufiiciently compressed between the head of the screw and the sleeve 35, it regulates the relative adjustment of the two towards each other and accurately determines such adjustment. The sleeve 35 bears against the head 37 of a cylindrical bushing, carrier, member or support 38. This bushing is received and sup ported in a correspondingly shaped horizontal opening in the main body 21 of the cross truck, and is adapted to receive a rotative adjustment therein as will presently appear. The bushing is tapped longitudinally and eccentrically of its axis to receive the threaded end of the screw 32. Vhen the screw is threaded firmly into place the sleeve. 35 will be clamped firmly against the headed end of the bushing, and the bushing and screw will be firmly united. If at this time the screw 32 be turned with the aid of a screw driver the bushing will turn with it, and by reason of the eccentric arrangement of the screw in the bushing, a bodily up and down adjustment of the screw with the entire ball bearing and the roller 27 thereon will be effected. In order to hold the bushin in any position to which it may be rotatively adjusted, and also in order to prevent the bushin from being displaced longi-.

- in and cause the head 37 thereof to bear firmly against the rear face of the truck member 21 where it surrounds the bushing. By these means the bushing and the parts connected therewith are firmly held in adjusted position and maintained against accidental displacement on the truck in any direction.

The means by which the rollers 28 and 29 are mounted and the bearings therefor are held in adjusted position, are the same as those described above except that the screw 39 b which each bushing is held in adjuste position is threaded'into a tapped opening in an enlarged part on the truck section 21 and exten s at an inclination, as shown in Figs. 1 and 6. By these means each roller 27, 28 and 29 may be individually adjusted transversely of its axis. The eiiect of such adjustment is to raise or lower the truck and totalizer thereon at either or both ends so as to compensate for any inequalities in the truck and cause the truck member 21 to be brought into parallelism with the parallel guide ways 11 and 12 and be positively guided and supported thereby against movement transversely of the line :of travel of said truck member.

In practice the two rollers 28 and 29 may be adjusted until the truck and totalizer travel at the proper height and with the axis of the wheels 24 in up and down arallelism with the rails 11 and 12. The roller 27 may then be adjusted up so that there can be no lateral play of the truck on the ways 11 and 12. H

Even though an up and down adjustment of the cross truck may be attained as described, this may be found insufficient to bring the wheels 24 in proper relation to the master wheel 25 in the travel of the totalizer 23, Therefore I have provided additional adjusting means whereby the truck member 22 and with it the totalizer 23 may be adjusted fore and aft of the machine relatively to the main truck member 21, or in different angular relations thereto. Such means in the present instance comprise three separate independently adjustable devices of like character co-acting at different points on the two truck members to efiect such ad'ustment. One such adjusting means wil be specifically described, but the same reference numerals will be applied to all three adjustin means, Referring more particularly to ig. 3, it will be seen that the totalizer carrying section 22 is tapped to receive a bushing 42 rounded at its inner end to form a contact face which projects beyond the rear face of the member 22 and wears against the front face of the truck section 21. This hushing'is notched at 42' to receive a spanner wrench or tool by which the bushing may be adjusted in the tapped opening in which it is received. This bushing also has a central opening therein through which the stem of a headed screw 43 may pass and be threaded into a tappedopenmg in the member 21, while the head of the screw is received in a counter-sunk opening in the bushing, so as not to interfere with the adjustment of the totalizer 23 on the member 22. It will be member 21 and the screw 43 fixedly unites the two members in their ositions of relative adjustment. It will e seen that one bushing 42 is located near the center and upper edge of the late-like member 22, whereas another such ushing is located near each end and lower edge of said member, affording a three-point adjustment, and each bushing has associated therewith a screw -13. By these individually adjustable means the member 22 may be adjusted fore and aft of the machine on the member 21 and into parallelism therewith or in any desired angular relation thereto. For example, a uniform extent of forward or rearward adjustment of all three bushings causes a corresponding fore or aft adjustment of the member 22 and the totalizer carried thereby, without changing the angular relation of the member 22 or the totalizer 23'to the main truck section 21.. However, a forward adjustment of the upper bushing 42 alone results merely in al owing of a tiltin of the upper edge of the member 22 back around the contact faces of the lower bushings, causing a corresponding bodily an ilar adjustment of the totalizer 23. A orward adjustment to equal extents of the two lower bushings alone enables a tilting of the member 22 rearwardly at the bottom, causing a corresponding adjustment of a totalizer 23. By adjusting the bushing at either end of the member 22 the said member may be tilted at that end around the contact faces or ends of the other two bushings, causing a corresponding angular adjustment of the totalizer." In this manner a n desired adjustment of the member 22 wit the totalizer 23 thereon either angularly or backward and forward parallel to the member 21 may be had and the member 22 may befixedly secured to the member 21 in any such adjusted position by the screws 43, at which time the two members of the truck travel together and have the totalizer firmly though detachably secured thereto.

From certain as ects of my invention the totalizer 23 may firmly though detachably secured to the member 22 of the truck by any suitable means. However, I prefer to secure the totalizer in lace by the means usually employed in the emington accounting machine. Thus it will be seen that the member 22 is of dove-tail formation in cross section, as indicated at 44, and is received in correspondingly shaped openings 45 in the side plates of the frame of the totalizer 23.

This enables the totalizer to be seated on the member 22 by sliding the totalizer along over the right-hand end of the dovetail on the member 22 to the position for use, where it is arrested by a shoulder 46 on a locking plate 47 secured to the front face of the member 22. The upper edge of this plate has a locking notch 48 in which a spring pressed latch 49 (Fig. 1) on the totalizer 23 may be seated. This latch is provided with a finger piece 50 which is maintained depressed while the totalizer is being positioned on the truck, and is released to lock the totalizer in place when the latter is properly located. The totalizer is thus locked on the member 22 and held against sliding movement thereon as well as against movement transversely thereof.

The cross truck is connected to the usual spring 51 by which it is returned to the right independently of the main truck when released from the latter. This spring may be connected at one end to a pin 52 secured to the cross truck supporting frame and at the other end to the truck. A convenient way to connect the spring to the truck is to thread a screw 53 through a tap ed opening in the truck member 21, provi ing a rearwardly extending projection on the screw to which one end of the spring may be fastened. The head of the screw is received in a countersunk opening in the front face of the truck member 21 (Fig. 1) so as not to interfere with the adjustment of the member 22 thereon.

The spring 51 intermediate its ends passes around a pulley 54 that turns on a headed pin 55 riveted to a sheet metal bracket 56 secured at its foot piece by screws 57 to the late 8 of the cross truck supporting frame. is bracket has bent cars 56 on opposite sides thereof that extend over and under the grooved periphery of the pulley and permit the spring to pass freely around the pulley but act'as a'rds to revent the spring from being disp aced 011' t e pulley.

The usual pick-up beam 58, b which the cross truck is alternately picke up by the main carria e or truck and released therefrom for in ependent return movement, is pivoted at 59 to a sheet metal bracket 60. A convenient manner of connecting this bracket to the cross truck is to provide a recess 61' (see Fig. 3) in the front face of the member 21 in which to seat the foot piece 62 of the bracket and secure the foot piece to said member by screws 63. Access may be gained to the heads of said screws through openings 64 in the member 22 without disturbing the adjustment of said member.

A member 65 for arresting the return movement of the cross truck to normal position is adjustably secured to the member 21 by screws 66, said member havinghthe same use and function as a similar bar eretofore employed in the Remington machine and co-operatin with a certain sto lever not shown; an the usual rack bar 6 is secured by screws 68 to the member 21.

It is usual in the Remington accounting machine to provide a latch for locking the cross truck in its extreme left hand position, when it is desired to throw it out of action. This may be conveniently done in the present construction by mounting a hand actuated lever 69 on a screw bolt pivot 70 held on a plate 71. This plate is su ported by the cross rods 13 and 14 and wit the plate 72 (supported in a like manner) form parts of the frame of the regular Remington accounting machine. The lower end of the lever 69 is provided with a finger piece 73 by which it may be shifted into and out of effective position, suflicient friction being maintained at the bearing of the lever by a nut 74 and a spring washer 76 to hold it in either of such positions. The upper forwardly extending end of the locking lever may be projected forwardly into the path of travel of the roller 29, thereby preventing a return movement of the cross truck.,

When said end 75 is withdrawn the truck is free to travel.

The usual cross truck of the Remington accounting machine is made of cast metal, and the main body section 21 of the truck of my invention may be made of cast metal. However, by making the totalizer carrying member 22 as a separate part of the truck I am enabled to make such part of steel and form it with great accuracy and readily to case harden it. I am also enabled by the present construction to readily case harden the various parts on which most wear is produced, such as the rollers, roller bearmgs, etc. The rods 11 and 12 also may be case hardened though in practice this has been deemed unnecessary. These rods are so mounted that there is nothing to prevent them from being turned so that the rollers would not always run along the same paths on them.

From the'foregoin it will be understood that the proper trave of the wheels 24 past the master wheel 25 may be determined with great accuracy and nicety and due compensation for wear may be made at any time by the ad'usting means described. It will also be un erstood that the cross truck is efiiciently supported and guided against movement transversely of its direction of travel yet without material resistance to its movement in the direction of its travel.

Sometimes it ,is deemed desirable to provide an extra tie between the rods 11 and 12 intermediate the ends thereof in" order to prevent them from being sprung apart by a camming action of the rollers 27, 28, 29

thereon, should any unusual accidental twisting or fore and aft strain be exerted on the cross truck. This additional tie is more particularly desirable when the rods ll and 12 are longer than usual for supporting a cross truck that is unusually long and which usually carries more than one cross totalizer. This tie in the present instance consists of a sheet metal member 7 7 having an upper end portion that extends forwardly over the rod 11 and is recessed at 78 to form a seat to receive the upper side of the rod 11. An extension 79 projects forwardly from the upright rear portion of the member 77 beneath the rod 12 and is recessed at 80 to form a seat to receive the lower side of said last mentioned rod. The lower end portion of the member 77 is apertured to receive the bolt which constitutes the pivot for the lever 69, thus anchoring the member 77 to the plate 71. The construction of the membar 7 7 is such that it does not interfere with the travel of the cross truck nor the free travel of the rollers 27, 28, 29 past said member.

It will be seen that by this construction the rods 11 and 12 are positively held about midway inthe lengths thereof against bein spread apart b a camming action of the rollers 27, 28 an 29 thereon, should the cross truck be subjected to a twisting force or should an unusual fore or aft force be exerted on the truck.

Various changes may be made without departing from my invention as itis defined in the accompanying claims and certain features thereo others. a

What I claim as new and desire to secure by Letters Patent, is Y 1. In a calculating machine, the combination of a truck; means'for supporting and may be employed without y which the truck is wholly supported and guided, the rollers being on said truck and "bearing on said ways; and means for effecting an adjustment of said truck relatively to said ways.

2. In a calculating machine, the combination of a truck; means for supporting and uiding-said truck in its travel comprising xed arallel supporting ways and rollers by which the truck is wholly supported and guided, the rollers being on said truck and bearing on said ways; and adjustin r means for varying the position of the true in the plane thereof relatively to said ways and for ringing the truck into paralle ism with said ways.

3. In a calculating machine, the combination of a truck; means for supporting and guidin said truck in its travel comprising paralle supporting rods and rollers, the rollers being on the truck and bearing on said rods and wholly supporting the truck thereon and positively guiding it against transverse movement; and means for effectin an individual adjustment of each of said rollers on the truck.

4. In a calculating machine, the combination of a truck; means for supporting and guiding said truck in its travel comprising parallel supporting rods and rollers, the rollers being on the truck bearing on said rods and wholly supporting the truck thereon and positively guiding it against transverse movement; and means for efiecting an individual adjustment of each of said rollers on the truck transversely of the axis of the roller.

5. In a calculating machine, the combination of a truck; means for supporting and guiding said truck in its travel comprising parallel supporting rods and rollers, the rollers being on the truck and bearing on said rods and wholly supporting the truck thereon and positively guiding it against transverse movement; and means for effecting an individual adjustment of each of said rollers on the truck, said adjusting means including a rotatively adjustable carrier for each roller and on which a roller is carried eccentrically of the axis of said carrier.

6. In a calculating machine, the combination of a truck; means for supporting and guiding said truck in its travel comprising parallel supporting rods and rollers, the rollers being on the truck and bearing on said rods and wholly supporting the truck thereon and positively guiding it against transverse movement; and means for effecting an individual adjustment of each of said rollers on the truck, said adjusting means including a rotatively adjustable carrier for each roller and on which a roller is carrier eccentrically of the axis of said carrier, and a set screw reacting with each rotatively adjustable carrier to hold it against accidental displacement from its ad usted position.

7. In a calculating machine, the combination of a totalizer; a truck therefor comprising a main body section and a totalizer carrying section; and means for effecting an adjustment of the last mentioned section on said main body section and for holding the sections fixedly united in any position of relative adjustment.

8. In a calculating machine, the combination of a totalizer; a truck therefor comprising a main body section and a totalizer carrylng section; and means for efi'ectmg an adjustment of the last mentioned section, said adjusting means being a three-point adjustment and the adjusting means at each point being adjustable independently of those at the other points.

9. In a calculating machine, the combination of a totalizer; a truck therefor comprising a main body section and a totalizer carrying section; and adjustable means for fixedly uniting said sections in different angular relations.

10. In a calculating machine, the combination of a totalizer; a truck therefor com prising a main body section and a totalizercarrying section; and means for effecting an adjustment of the last mentioned section on said main body section and for holding the sections fixedly united in any position of relative adjustment, said adjusting means comprising a bushing threaded into a tapped opening in one of said sections and bearing at its inner end against the other section, and a screw extending through said bushing and into a tapped opening in said other section to firmly hold the sections united in any position of relative adjustment.

11. In a calculating machine, the combination of a totalizer, a truck member, and means for effecting an adjustment of the totalizer transversely of the line of travel of said truck member and for firmly though detachably holding the totalizer in any such position of adjustment on said truck member.

12. In a calculating machine, the combination of a totalizer, a truck member, and means for effecting an adjustment of said totalizer towards or away from said truck member in parallelism therewith and for firmly though detachably securing the totalizer to said truck member in any position of adjustment.

13. In a calculating machine, the combination of a totalizer, a truck member, and means for effecting an adjustment of said totalizer towards or away from said truck member in parallelism therewith or in difl'erent angular relations thereto as may be desired and for firmly though detachably securing the totalizer to said truck member in any position of adjustment.

'14. In a calculating machine, the combi nation of a totalizer; a truck therefor comprising a main body member and a totalizercarrying' member of dove-tail formation in cross section which interlocks with the to talizer and along which the latter has a sliding adjustment to the position of use; and means for effecting an adjustment of the dove-tail member on said main body menr her andfor fixedly uniting said members in any position of relative adjustment.

15. In a calculating machine, the combination of a totalizer; a truck therefor comprising a main body member and a totalizer carrying member of dove-tail formation in cross section which interlocks with the. totalizer and along which the latterhas a sliding adjustment to the position of use; and means for effecting an adjustment of the dove-tail member on said main body member and for fixedly uniting said members in any position of relative adjustment, said adjusting and securing means comprising a bushing threaded. into a tapped opening in one of said members and bearing at an end against the other member and a screw extending through said bushing and into a tapped opening in one of said truck members.

16. In a calculating machine, the combi nation of a totalizer; a truck therefor com-' prising a mainbody member and a totalizer carrying member of dove-tail. formation in cross section which interlocks with the totalizer and along which the latter has a sliding adjustment to the position of use; and means for effecting an adjustment of the dove-tail member on said main body member to different p sitions'parallel with the latter or in different angular relations thereto and for fixedly uniting the members in any such position of relative adjustment.

17. In a calculating machine, the combination of a totalizer; a truck therefor comprising a main body member and a totalizer carrying member of dove-tail formation in cross section which interlocks with the totalizer and along which the latter has a sliding adjustment to the position of use; and means for effecting an adjustment of". the dove-tail member on said main bod Y member to different positions parallel with the latter or in different angular relations thereto and for fixedly uniting the members in any such position of relative adjustment, said adjusting and securin means being located at three points and those at each point being individually adjustable and comprising a bushin threaded into a tapped opening in said ove-tail member and porting and guide rods,

inner end against said main body member, and. a screw which extends throu h said bushing and engages in a tappe opening in said main body member.

18. In a calculating machine, the combination of a truck; means for supporting and positively guiding said truck against trans verse movement comprising parallel supand grooved rollers on the truck bearing on said rods; and means for adjusting said rollers transversely of their axes on said truck.

19. In a calculating machine, the combination of a truck; means for supporting and positively guiding said truck against transverse. movement comprising para lel supporting and guide wa s, rollers that bear on said ways, and ba bearings by which said rollers are journaled on the truck; and means for adjusting said rollers transversely of their axes on said truck.

bearing at 2 its 20. In a calculating machine, the combi nation of a truck; means for supporting and positively guiding said truck against transverse movement comprising parallel supporting and guide ways, rollers that bear on said Ways, and ball bearings for each of said rollers, and individual means for adjusting the ball bearings of each roller transversely of the axis of the associated roller.

21. In a calculating machine, the combination of a truck; means for supporting and positively guiding said truck against transverse movement comprising parallel supporting and guide ways, rollers that bear on said ways, and ball bearings for each of said rollers, and individual means for adjusting the ball bearings of each roller transversely of the axis of the associated roller, each indi-- vidual adjusting means comprising an adjustable member that has a rotative adjustment on the truck and on which the associated ball bearing is mounted eccentrically of the axis of rotative adjustment of said adjustable member.

22. In a calculating machine, the combination of a truck; means for supporting and positively guiding said truck against trans: verse movement comprising parallel supporting and guide ways, rollers that bear on said ways, and ball bearings for each of said rollers; and individual means for adjusting the ball bearings of each roller transversely of the axis of the associated roller, each individual adjusting means comprising an adjustable member that has a rotative adjustment on the truck associated ball bearing is mounted eccentrically of the axis of rotative adjustment of said adjustable member, and a set screw that holds said adjustable member seated on the truck and also holds it in its adjusted position.

23. In a. calculating machine, the combi-- and on which the nation of a truck member, parallel guide ways for supporting said member and positively guiding it against movement in a di-. rection transverse to its line of travel, a totalizer carried by the truck member, means for adjusting said member transversely of and relatively to said guide ways, and means for adjusting the totalizer on said member transversely of the line of travel thereof.

24. In a. calculating machine, the combination of a truck member, parallel guide ways for supporting said member and positively guiding it against movement in a direction transverse to its line of travel, a totalizer carried by the truck member, means for effecting an up and down adjustment of said member relatively'to said ways, and means for effectin a fore and aft adjustment of the tota izer relatively to said member.

2,). In a calculating machine, the combination of a truck member, parallel guide ways for supporting said member and positively guiding it against movement in a direction transverse to its line of travel, a t-otallzer carried by the truck member, means for eflecting an up and down adjustment of said member at either or both ends thereof relatively to said ways, and means for eifcctin afore and aft adjustment of the totalizerre atively to said member either parallel with said member or to change the: angular relation of the totalizer thereto.

26. In a calculating machine, the combination of a truck member, parallel guide ways for supporting said member and positively guiding it against movemen tlin a direction transverse to its line of travel, a totalizer carried by the truck memlber, means for effecting an up and down adjustment of said member at either or both ends thereof relatively to said ways, and means for effecting a fore and aft adjustment of the totalizer relatively to said member either parallel with said member or to change the angular relation of the totalizer thereto, said first mentioned adjusting means comprising rollers on said member and bearing against said wa s, and means for adjusting each of said rol ers transversely of its axis on said member and thereby elevating or lowering the latter.

27. In a calculating machine, the combination of a truck, and means for effecting an adjustment of said truck transversely to the line of its travel comprising a roller, a ball bearing for said roller, and a rotatively adjustable member on which said ball bearing is mounted ecce'ntrically of said rotatively adjustable member.

28. In a calculating machine, the combination of a truck; means for su porting and guiding said truck in its trave comprising parallel supporting rods and rollers, the t rollers being on [the truck and bearing on said rods and wholly supporting the truck thereon and positively guiding it against transverse movement; means intermediate the ends of said rods for tying them together without interfering with 'the travel of the truck; and means for effecting an individual adjustment of each of said rollers on the truck.

Signed at the borough of Manhattan, city 10 of New York, in Lhe county of New York and State of New York, this 29th day of November, A. D. 1922.

FREDERICK A. HART. \Vitnesses:

CHARLES SMITH, E. M. WELLS. 

